CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 750 · 40 questions

Code tip (Rule, then maths): Find the topic: syntax, selectors, properties, colours, box model, cascade, flexbox or media queries. Decide which rule or property applies to the element. For sizes, write the sum down: both sides for the box model, free space for flexbox.

1. 1.🌈 Which colour is rgb(255, 255, 0)? (a) white (b) red (c) cyan (d) yellow
2. 2.✍️ What value is given to border in this rule?
   #top {
     font-weight: bold;
     text-align: center;
     border: 2px solid;
     margin: 10px;
   } (a) italic (b) border (c) 2px solid (d) 300px
3. 3.⚖️ What colour is the text of this element?
   <h2 class="big" id="hero">Hi</h2>
   CSS:
   h2 { color: yellow; }
   #hero { color: blue; } (a) green (b) yellow (c) blue (d) white
4. 4.✍️ What value is given to text-align in this rule?
   h2 {
     font-weight: bold;
     text-align: center;
   } (a) yellow (b) 10px (c) center (d) text-align
5. 5.✍️ How many declarations (property: value pairs) are in this rule?
   .box {
     background-color: yellow;
     border: 2px solid;
     font-weight: bold;
   }
6. 6.🖌️ Which CSS property colours behind the text? (a) text-align (b) font-weight (c) font-size (d) background-color
7. 7.💪 Which justify-content value puts boxes in the middle? (a) space-between (b) flex-end (c) flex-start (d) center
8. 8.✍️ How many declarations (property: value pairs) are in this rule?
   li {
     font-weight: bold;
     width: 300px;
   }
9. 9.🧩 Which language lays out the page? (a) CSS (b) HTML (c) JavaScript
10. 10.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
11. 11.🔍 Which is the odd one out? (a) reacts to a button click (b) counts down a timer (c) shows a pop-up message (d) puts a picture on a page
12. 12.🎨 A CSS file usually ends with which extension? (a) .png (b) .css (c) .html (d) .js
13. 13.📦 How much space top to bottom (px) does this box take in all, margin included?
    .box {
      height: 60px;
      padding: 20px;
      border: 5px solid black;
      margin: 5px;
    }
14. 14.True or false: JavaScript changes the page live. (a) True (b) False
15. 15.⚖️ What colour is the text of this element?
    <h1 class="note" id="top">Hi</h1>
    CSS:
    #top { color: white; }
    #top { color: black; } (a) white (b) red (c) purple (d) black
16. 16.Which of these does CSS do? (a) makes headings and lists (b) gives the page structure (c) checks a quiz answer (d) sets colours and fonts
17. 17.🌈 Which hex code is magenta? (a) #0000ff (b) #ff0000 (c) #00ff00 (d) #ff00ff
18. 18.🖌️ Where does the text sit on its line?
    h1 {
      background-color: green;
      text-align: left;
      font-size: 20px;
      color: purple;
    } (a) on the left (b) on the right (c) in the middle
19. 19.🧩 Which language changes the text size? (a) HTML (b) JavaScript (c) CSS
20. 20.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
    .box {
      width: 270px;
      padding: 30px;
      border: 3px solid black;
      margin: 15px;
    }
21. 21.🎨 Which attribute adds CSS inside one tag? (a) alt (b) href (c) src (d) style
22. 22.🌈 Which hex code is red? (a) #000000 (b) #ff0000 (c) #0000ff (d) #00ffff
23. 23.✍️ What is the selector in this CSS rule?
    li {
      border: 2px solid;
      font-size: 20px;
      color: red;
      padding: 8px;
    } (a) body (b) 20px (c) border (d) li
24. 24.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
25. 25.🌈 Which colour is rgb(0, 0, 255)? (a) bright green (b) white (c) blue (d) red
26. 26.💪 Which flexbox property lines boxes up across? (a) flex-direction (b) display: flex (c) align-items (d) gap
27. 27.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
28. 28.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
29. 29.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 280px;
      justify-content: center;
    }
    Inside are 3 boxes, each 40px wide (no margins).
30. 30.True or false: margin is space outside the border. (a) True (b) False
31. 31.What does justify-content: space-between do? (a) puts boxes in the middle (b) packs boxes at the start (c) equal gaps, none at ends (d) packs boxes at the end
32. 32.📱 max-width: 600px applies when the screen is ___. (a) exactly 1000px (b) 600px or wider (c) 600px or narrower (d) turned off
33. 33.🖌️ Where does the text sit on its line?
    h1 {
      background-color: blue;
      text-align: right;
      font-size: 40px;
      color: purple;
    } (a) on the right (b) in the middle (c) on the left
34. 34.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
35. 35.🖌️ How big is the text, in px?
    li {
      color: green;
      font-size: 20px;
      text-align: center;
      background-color: purple;
    }
36. 36.⚖️ What colour is the text of this element?
    <h2 class="red" id="intro">Hi</h2>
    CSS:
    #intro { color: red; }
    #intro { color: yellow; } (a) black (b) yellow (c) purple (d) red
37. 37.Which of these does HTML do? (a) reacts to a button click (b) adds space around boxes (c) makes a link (d) changes the page live
38. 38.🌈 Which colour of light is strongest in rgb(40, 200, 117)? (a) blue (b) green (c) red
39. 39.⚖️ What colour is the text of this element?
    <p class="red" id="top">Hi</p>
    CSS:
    #top { color: yellow; }
    .red { color: orange; }
    p { color: purple; } (a) white (b) orange (c) purple (d) yellow
40. 40.🖌️ How big is the text, in px?
    h1 {
      text-align: right;
      font-size: 36px;
      background-color: green;
      color: blue;
    }

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